Santhosh Kannan - Freelance Software Engineer

Q: Where is Santhosh based?

Santhosh is based in Berlin, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does Santhosh speak?

Santhosh speaks the following languages: English (Advanced), German (Intermediate) .

Q: How many years of experience does Santhosh have?

Santhosh has at least 20 years of experience. During this time, Santhosh has worked in at least 7 different roles and for 8 different companies . The average length of individual experience is 2 years and 10 months . Note that Santhosh may not have shared all experience and actually has more experience.

Q: What is Santhosh's latest experience?

Santhosh's most recent position is Freelance Software Engineer at Zalando SE .

Q: What companies has Santhosh worked for in recent years?

In recent years, Santhosh has worked for Zalando SE , apinity GmbH , MediaMarktSaturn , and smava GmbH .

Q: Which industries is Santhosh most experienced in?

Santhosh is most experienced in industries like Information Technology (IT) , Retail , and Real Estate . Santhosh also has some experience in Fashion and Apparel , Banking and Finance , and Automotive .

Q: Which business areas is Santhosh most experienced in?

Santhosh is most experienced in business areas like Information Technology (IT) , Product Development , and Operations .

Q: Which industries has Santhosh worked in recently?

Santhosh has recently worked in industries like Retail , Information Technology (IT) , and Banking and Finance .

Q: Which business areas has Santhosh worked in recently?

Santhosh has recently worked in business areas like Information Technology (IT) , Product Development , and Operations .

Recommended expert

Berlin, Germany

Experience

Aug 2024 - Present

1 year 7 months

Berlin, Germany

Freelance Software Engineer

Zalando SE

Support Authorization as a Service initiative for enterprise-scale authorization platform
Incorporate comprehensive observability solutions into authorization infrastructure
Provision and manage AWS infrastructure for authorization services
Mentor development team on AWS and Kubernetes best practices
Tech Stack: Java/Kotlin, Golang, Python, OPA, Spring Boot, AWS, Kubernetes, Terraform, ELK Stack, Prometheus, Grafana

Apr 2023 - Aug 2024

1 year 5 months

Berlin, Germany

Freelance Platform Engineer

apinity GmbH

Bootstrap platform components and enhance infrastructure as code implementations
Develop custom Kubernetes operators (Golang/Rust) for automated tenant resource provisioning
Lead migration initiatives toward GitOps methodologies
Tech Stack: Azure, Kubernetes, Terraform, Java/Kotlin, Golang, Rust, Elasticsearch, Kube Prometheus Stack, Grafana, Helm, ArgoCD

May 2022 - Apr 2023

1 year

Berlin, Germany

Freelance Software Engineer

MediaMarktSaturn

Delivered full-stack features across frontend and backend systems
Mentored development team on GCP and Kubernetes best practices
Supported organizational migration to GitOps workflows
Tech Stack: Java/Kotlin, Spring, GCP, Kubernetes, Terraform, React/TypeScript, Kube Prometheus Stack, Grafana, FluxCD

Jul 2021 - Oct 2022

1 year 4 months

Berlin, Germany

Senior DevOps Engineer

smava GmbH

Facilitated datacenter-to-AWS migration for legacy applications
Optimized Kubernetes infrastructure, monitoring, and end-to-end testing processes
Enhanced team capabilities through feature development support
Tech Stack: AWS, Kubernetes, Terraform, CDK, Golang, Ansible, Java, EFK Stack, Prometheus, Thanos, Grafana

Mar 2021 - Mar 2022

1 year 1 month

Berlin, Germany

Freelance Software Engineer

Zalando SE

Developed new features using Kotlin and Scala within microservices architecture
Provided technical mentorship on AWS, Kubernetes, and Spring ecosystem
Contributed to cross-functional team development initiatives
Tech Stack: Java/Kotlin/Scala, Spring Boot, AWS, Kubernetes, TypeScript, React.js, Rust, Prometheus, Grafana

Jan 2021 - Mar 2021

3 months

Berlin, Germany

Freelance Software Engineer

MediaMarktSaturn

Enhanced team capabilities through feature development and implementation
Implemented retry mechanism leveraging Kafka state store for improved reliability
Integrated Prometheus metrics across services with Istio service mesh
Tech Stack: Kotlin, Koin, Http4k, GCP, Kubernetes, Terraform, Istio, Prometheus, Grafana, Kafka Streams

Jun 2020 - Dec 2020

7 months

Berlin, Germany

Lead Engineer (Freelance)

Heycar

Led platform expansion to new geographic markets
Architected and implemented AWS/Kubernetes infrastructure for regional rollout
Designed multi-tenancy solutions for core platform services
Integrated third-party services for stock management and marketing automation
Tech Stack: Java/Kotlin, Spring Boot, AWS, Kubernetes, Terraform+CFN, CDK, Golang, TypeScript, React.js (Next.js), Prometheus, Grafana, ELK Stack

Nov 2019 - Apr 2020

6 months

Berlin, Germany

Freelance Software Engineer

Zalando SE

Architected and implemented core services in Kotlin
Migrated legacy applications to modern Kotlin-based architecture
optimized frontend deployment pipeline using CloudFront and S3
Developed automation tools using Rust for PR management
Tech Stack: Java/Kotlin/Scala, Spring Boot, AWS, Kubernetes, TypeScript, React.js, Next.js, Rust, Prometheus, Grafana

Dec 2016 - Oct 2019

2 years 11 months

Berlin, Germany

Senior Software Engineer

ImmobilienScout24 GmbH

Integrated multiple payment providers and payment method implementations
Led application migration from on-premises datacenter to AWS cloud
Modernized frontend stack from legacy JSP/Angular to TypeScript/React.js
Automated build pipeline migration from TeamCity to Jenkins using Rust tooling
Tech Stack: Java 11, Spring Boot, AWS SDK, Kinesis, TypeScript, React.js (Next.js), Docker, ELK Stack, Grafana, Prometheus, CloudWatch

Feb 2015 - Nov 2016

1 year 10 months

Berlin, Germany

Senior Java Developer

ProfitBricks GmbH

Refactored legacy codebase and eliminated deprecated framework dependencies
Resolved critical 4-year-old memory leak through performance profiling and GC tuning
Contributed to Terraform module development for ProfitBricks Cloud platform
Established automated CI/CD pipeline using Jenkins
Tech Stack: Java 7/JEE, GlassFish, PostgreSQL, Dropwizard, Kubernetes (0.x), Terraform, Jenkins, GitLab CI

Jul 2005 - Jan 2015

9 years 7 months

Lead/Senior Software Engineer

CSC

Delivered software solutions across multiple client projects and geographic locations
Implemented automation solutions and established development best practices
Provided technical leadership and emergency support for critical systems
Tech Stack: JVM ecosystem, ALSB 2.5, WebLogic 9.2, J2ME

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (14 years), Retail (4 years), Real Estate (3 years), Banking and Finance (1.5 years), Fashion (1.5 years), and Automotive (0.5 years).

Information Technology

Retail

Real Estate

Banking and Finance

Fashion

Automotive

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (20.5 years), Product Development (15 years), and Operations (1.5 years).

Information Technology

Product Development

Operations

Summary

Senior Full-Stack Developer and Platform Engineer with nearly two decades of expertise in Java, Kotlin, Scala, and cloud infrastructure (AWS, Azure, GCP). Specialized in Kubernetes orchestration, Infrastructure-as-Code, microservices architecture, and modern frontend development. Proven track record in platform migrations, DevOps automation, and technical mentorship across fintech, e-commerce, and automotive industries.

Skills

Programming Languages: Java, Kotlin, Scala, Rust, Golang, Python, Typescript, Javascript
Cloud Platforms: Aws, Azure, Google Cloud Platform (Gcp)
Container & Orchestration: Kubernetes, Docker, Istio, Helm, Linkerd
Infrastructure As Code: Terraform, Cloudformation, Cdk, Pulumi, Saltstack, Ansible
Backend Frameworks: Spring Boot, Dropwizard, Play Framework, Http4k, Ktor, Hibernate
Event Streaming & Messaging: Apache Kafka, Aws Kinesis, Sns, Sqs, Azure Eventbus, Rabbitmq
Frontend Technologies: React.js, Next.js, Typescript, Angular, Svelte, Jquery
Databases: Postgresql, Oracle, Mysql, Db2, Mongodb
Ci/cd & Build Tools: Jenkins, Github Actions, Circleci, Teamcity, Maven, Gradle, Sbt, Cargo, Gitlab
Monitoring & Observability: Kube Prometheus Stack, Grafana, Elk/efk Stack, Datadog, Cloudwatch, Azure Monitor
Web Services & Integration: Rest, Soap, Graphql, Esb, Json, Xml, Web Services
Application Servers: Tomcat, Weblogic, Websphere, Jboss, Glassfish
Methodologies: Agile, Scrum, Kanban, Devops, Gitops

Languages

English

Advanced

German

Intermediate

Education

Jul 2002 - May 2005

PSG College of Technology

Master of Computer Applications, MCA · Computer Applications · Coimbatore, India

Profile

Created

August 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Santhosh based?

Santhosh is based in Berlin, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Santhosh speak?

Santhosh speaks the following languages: English (Advanced), German (Intermediate).

How many years of experience does Santhosh have?

Santhosh has at least 20 years of experience. During this time, Santhosh has worked in at least 7 different roles and for 8 different companies. The average length of individual experience is 2 years and 10 months. Note that Santhosh may not have shared all experience and actually has more experience.

What roles would Santhosh be best suited for?

Based on recent experience, Santhosh would be well-suited for roles such as: Freelance Software Engineer, Freelance Platform Engineer, Senior DevOps Engineer.

What is Santhosh's latest experience?

Santhosh's most recent position is Freelance Software Engineer at Zalando SE.

What companies has Santhosh worked for in recent years?

In recent years, Santhosh has worked for Zalando SE, apinity GmbH, MediaMarktSaturn, and smava GmbH.

Which industries is Santhosh most experienced in?

Santhosh is most experienced in industries like Information Technology (IT), Retail, and Real Estate. Santhosh also has some experience in Fashion and Apparel, Banking and Finance, and Automotive.

Which business areas is Santhosh most experienced in?

Santhosh is most experienced in business areas like Information Technology (IT), Product Development, and Operations.

Which industries has Santhosh worked in recently?

Santhosh has recently worked in industries like Retail, Information Technology (IT), and Banking and Finance.

Which business areas has Santhosh worked in recently?

Santhosh has recently worked in business areas like Information Technology (IT), Product Development, and Operations.

What is Santhosh's education?

Santhosh holds a Master in Computer Applications from PSG College of Technology.

What is the availability of Santhosh?

Santhosh is immediately available full-time for suitable projects.

What is the rate of Santhosh?

Santhosh's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.